Guardant Health, Inc. (GH) Insider Trading
Over the last 3 months, GH insiders made 1 open-market buy and 43 sales, a net sale of -$83.6M (SEC Form 4). Over the last 6 months, 388 institutions increased and 351 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
1
Sells (3m)
43
Net (3m)
-$83.6M
Insiders buying
Insider trades by month Buys Sells
Apr
May
Jun
Jul
Aug
Context3-month price +23.2%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 24, 2026 | Talasaz AmirAlidirector, officer: Co-Chief Executive Officer | Sell | 7,589 | $170.29 |
| Aug 24, 2026 | Talasaz AmirAlidirector, officer: Co-Chief Executive Officer | Sell | 20,888 | $169.16 |
| Aug 24, 2026 | Talasaz AmirAlidirector, officer: Co-Chief Executive Officer | Sell | 9,023 | $168.20 |
| Aug 24, 2026 | MIGNONE ROBERTOdirector | Option | 264 | — |
| Aug 18, 2026 | Hidalgo Medina Manueldirector | Option | 232 | — |
| Aug 18, 2026 | Tariq Musadirector | Sell | 116 | $156.45 |
| Aug 18, 2026 | Tariq Musadirector | Option | 250 | — |
| Aug 13, 2026 | Monroe Terilyn J.officer: Chief People Officer | Sell | 3,704 | $163.41 |
| Aug 13, 2026 | Monroe Terilyn J.officer: Chief People Officer | Sell | 9,934 | $164.27 |
| Aug 13, 2026 | Monroe Terilyn J.officer: Chief People Officer | Sell | 13,248 | $166.11 |
| Aug 13, 2026 | Monroe Terilyn J.officer: Chief People Officer | Sell | 400 | $167.92 |
| Aug 13, 2026 | Monroe Terilyn J.officer: Chief People Officer | Option | 32,288 | $20.14 |
| Aug 13, 2026 | Monroe Terilyn J.officer: Chief People Officer | Sell | 19,014 | $165.16 |
| Aug 13, 2026 | Monroe Terilyn J.officer: Chief People Officer | Option | 14,012 | $28.61 |
| Aug 11, 2026 | Freeman Chrisofficer: Chief Commercial Officer | Option | 28,193 | $28.37 |
| Aug 11, 2026 | Freeman Chrisofficer: Chief Commercial Officer | Sell | 17,413 | $170.24 |
| Aug 11, 2026 | Freeman Chrisofficer: Chief Commercial Officer | Option | 35,412 | $110.49 |
| Aug 11, 2026 | Freeman Chrisofficer: Chief Commercial Officer | Sell | 7,365 | $168.79 |
| Aug 11, 2026 | Freeman Chrisofficer: Chief Commercial Officer | Sell | 35,364 | $169.63 |
| Aug 11, 2026 | Freeman Chrisofficer: Chief Commercial Officer | Sell | 3,463 | $167.38 |
| Aug 6, 2026 | Hidalgo Medina Manueldirector | Sell | 750 | $164.61 |
| Aug 6, 2026 | Hidalgo Medina Manueldirector | Sell | 950 | $163.94 |
| Aug 6, 2026 | Hidalgo Medina Manueldirector | Option | 950 | $32.55 |
| Aug 5, 2026 | CLARK IAN Tdirector | Option | 6,833 | $50.57 |
| Aug 5, 2026 | CLARK IAN Tdirector | Option | 2,255 | $91.11 |
| Aug 5, 2026 | CLARK IAN Tdirector | Sell | 9,088 | $158.98 |
| Aug 5, 2026 | CLARK IAN Tdirector | Sell | 5,092 | $158.80 |
| Jul 22, 2026 | MIGNONE ROBERTOdirector | Option | 264 | — |
| Jul 20, 2026 | Hidalgo Medina Manueldirector | Option | 232 | — |
| Jul 16, 2026 | Tariq Musadirector | Option | 250 | — |
Source: GH SEC Form 4 filings, latest Aug 24, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their GH positions over the last 6 months (SEC Form 13F).
Increased
388
New positions
231
Reduced
351
Sold out
43
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 11.6M | May 13, 2026 |
| BlackRock, Inc. | Reduced | 7.6M | Aug 7, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 7.0M | May 15, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 6.5M | Aug 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 5.8M | May 8, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 5.8M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 5.6M | May 15, 2026 |
| FMR LLC | Increased | 5.5M | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 5.4M | Aug 13, 2026 |
| INVESCO LTD. | Reduced | 4.9M | May 12, 2026 |
| GOLDMAN SACHS GROUP INC | Reduced | 4.4M | May 15, 2026 |
| Invesco Ltd. | Reduced | 4.4M | Aug 14, 2026 |
| TWO SIGMA INVESTMENTS, LP | Increased | 4.2M | May 15, 2026 |
| FMR LLC | Increased | 4.1M | May 15, 2026 |
| BAILLIE GIFFORD & CO | Reduced | 3.9M | May 8, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.